1352506673565 has 12 divisors (see below), whose sum is σ = 2344344900924. Its totient is φ = 721336892544.

The previous prime is 1352506673543. The next prime is 1352506673627. The reversal of 1352506673565 is 5653766052531.

It is a happy number.

1352506673565 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 5 + 0 + 6 + 6 + 73 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 474871213881 + 877635459684 = 689109^2 + 936822^2 .

It is not a de Polignac number, because 1352506673565 - 2⁶ = 1352506673501 is a prime.

It is a super-2 number, since 2×1352506673565² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15027851884 + ... + 15027851973.

It is an arithmetic number, because the mean of its divisors is an integer number (195362075077).

Almost surely, 2^{1352506673565} is an apocalyptic number.

1352506673565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1352506673565 is a deficient number, since it is larger than the sum of its proper divisors (991838227359).

1352506673565 is a wasteful number, since it uses less digits than its factorization.

1352506673565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30055703868 (or 30055703865 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 54.

The spelling of 1352506673565 in words is "one trillion, three hundred fifty-two billion, five hundred six million, six hundred seventy-three thousand, five hundred sixty-five".